Definitions for "Reserved"
Core API The following are reserved and should not be used in methods or names: __FILE__ __LINE__ alias and BEGIN begin break case class def defined? do END end else elsif ensure false for if in module next nil not or redo rescue retry return self super then true undef unless until when while yield
marked by self-restraint and reticence; "was habitually reserved in speech, withholding her opinion"-Victoria Sackville-West
Keywords:  revisions, exigency, spec, troops, dvd
Kept for future or special use, or for an exigency; as, reserved troops; a reserved seat in a theater.
The field indicated by the term "reserved" may be used in future revisions of the DVD specifications. Unless otherwise indicated all reserved bits shall be set to zero.
Currently unused field in DVD spec that may be used in future revisions of the spec.
Restrained from freedom in words or actions; backward, or cautious, in communicating one's thoughts and feelings; not free or frank.
Must be established by and currently subject to federal, state, commonwealth, territorial, local, or tribal law or regulation.
A value or behavior is unspecified, but it is not allowed to be used by Conforming Documents nor to be supported by Conforming User Agents.
Said of an object in the delivery, retrieval or input queue that the client can access without first removing it from that queue, yet with confidence that no other client can access the object simultaneously.
set aside for the use of a particular person or party
1) Held for a particular engagement or race. 2) Held off the pace.
Capacity or inventory allocated to a requirement but not yet used.
Keywords:  cool, manner, formal
cool and formal in manner
Retained existing title rights and/or interests.
Put aside for, to be used only for.
Must not be used.